What is a Monolithic Dome?

Built according to ACI 334.3R-05, monolithic domes may be described as “construction of concrete shells using inflated forms.” Three materials: concrete, rebar, and polyurethane foam, are applied to the inside of an inflated woven- vinyl airform to construct a seamless, insulated, clear-span, reinforced concrete structure.

Energy Efficiency

The monolithic dome requires an approximate two Watts per square foot of floor area for heating an occupied structure. In some instances, a completely passive system may be achieved for heating and cooling.


By design, the monolithic dome places the entirety of the concrete in a compressive state. This allows the monolithic dome to withstand: tornadoes, hurricanes, and earthquakes. Additionally, monolithic domes have been exposed to forest fires and have only received minor damage to the airform and exterior surface of the insulation - the structure and contents were safe.

Rapid Construction

A monolithic dome structure can be built start to finish in weeks. Once the airform is inflated, the rest of the construction is completed inside - weather delays do not exist with a monolithic dome.

Low Maintenance

Due to the shape and construction materials, monolithic domes have lower maintenance costs than conventional structures. In many cases, monolithic domes have not required maintenance for years.